Replace cast-as-char* byte access of multibyte variables with proper shifts and masks to preserve endianness across different architectures.

Projects/AVRISP-MKII/Lib/XPROG/TINYNVM.c

@@ -43,9 +43,9 @@ static void TINYNVM_SendPointerAddress(const uint16_t AbsoluteAddress)
 {
 	/* Send the given 16-bit address to the target, LSB first */
 	XPROGTarget_SendByte(TPI_CMD_SSTPR | 0);
-	XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[0]);
+	XPROGTarget_SendByte(AbsoluteAddress & 0xFF);
 	XPROGTarget_SendByte(TPI_CMD_SSTPR | 1);
-	XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[1]);
+	XPROGTarget_SendByte(AbsoluteAddress >> 8);
 }
 
 /** Sends a SIN command to the target with the specified I/O address, ready for the data byte to be written.

Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c

@@ -45,10 +45,10 @@
 static void XMEGANVM_SendAddress(const uint32_t AbsoluteAddress)
 {
 	/* Send the given 32-bit address to the target, LSB first */
-	XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[0]);
-	XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[1]);
-	XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[2]);
-	XPROGTarget_SendByte(((uint8_t*)&AbsoluteAddress)[3]);
+	XPROGTarget_SendByte(AbsoluteAddress &  0xFF);
+	XPROGTarget_SendByte(AbsoluteAddress >> 8);
+	XPROGTarget_SendByte(AbsoluteAddress >> 16);
+	XPROGTarget_SendByte(AbsoluteAddress >> 24);
 }
 
 /** Sends the given NVM register address to the target.

Projects/MIDIToneGenerator/MIDIToneGenerator.c

@@ -166,7 +166,7 @@ ISR(TIMER0_COMPA_vect, ISR_BLOCK)
 		if (NoteData[i].Pitch)
 		{
 			/* Use the top 8 bits of the table position as the sample table index */
-			uint8_t TableIndex = ((uint8_t*)&NoteData[i].TablePosition)[3];
+			uint8_t TableIndex = (NoteData[i].TablePosition >> 24);
 			
 			/* Add the new tone sample to the accumulator and increment the table position */
 			MixedSample += SineTable[TableIndex];